Used in organic synthesis as a building block for creating complex molecular structures, particularly in the development of covalent organic frameworks (COFs). It plays a key role in the design of materials for gas storage, separation, and catalysis due to its ability to form stable, porous networks. Additionally, it is employed in sensing applications, where its boronic acid groups selectively bind to diols and sugars, making it useful in glucose detection and other biochemical assays. Its phenylboronic acid groups also enable its use in drug delivery systems, where it can facilitate targeted release in response to specific biological conditions.